
Advance Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 2001
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CS44210
Digital PWM Controller with Headphone Monitor
Features
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Up
to 100 dB Dynamic Range
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2.4 V to 5.0 V supply
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Sample rates up to 96 kHz
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Digital Tone Control
—
3 selectable HPF and LPF corner frequencies
—
12 dB boost for bass and treble - 1 dB step size
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Programmable Digital volume control
—
+18 to -96 dB in 1 dB steps
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Peak signal soft limiting
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De-emphasis for 32 kHz, 44.1 kHz, and 48
kHz
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Selectable outputs for each channel including
—
Channel A: R, L, mono (L + R) / 2, mute
—
Channel B: R, L, mono (L + R) / 2, mute
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PWM PopGuard
Description
The CS44210 is a complete stereo digital-to-PWM Class D au-
dio amplifier system controller including interpolation, volume
control, half bridge PWM driver outputs, and an integrated
CS44L10 headphone amplifier in a 24-pin TSSOP package.
The CS44210 architecture uses a direct-to-digital approach
that maintains digital signal integrity to the final output filter.
This minimizes analog interference effects that can negatively
affect system performance.
The CS44210 contains on-chip digital bass and treble boost,
peak signal limiting, and de-emphasis. The PWM amplifier can
achieve greater than 90% efficiency. This efficiency leads to
longer battery life for portable systems, smaller device pack-
age, less heat sink requirements, and smaller power supplies.
The CS44210 provides all the controls necessary to drive high-
er voltage output stages for increased power levels.
The CS44210 is ideal for integrated, mult-function systems
such as shelf-top audio systems, audio mini systems, audio
video receivers (AVR), boom boxes and powered speakers.
ORDERING INFORMATION
CS44210-KZ -10 to 70 °C 24-pin TSSOP
Multibit
Σ
Modulator with
Correction
Multibit
Σ
Modulator with
Correction
Digital Volume
Control,
Bass/Treble
Boost,
Compression
Limiting,
De-emphasis
Control Port
SCL/CCLK/DIF0
MCLK
Input
MUX
and
Serial
Port
SDA/CDIN/DEM
VL
PWM
Conversion
PWM
Conversion
SYNC_CLK
DRIVER_B
HP_B
VA_HPB
GND_HPB
Level
Shifter
VA_HPA
Level
Shifter
HP_A
GND_HPA
RST
Interpolation
AD1/CDOUT
TSTIN
SCLK
LRCK
Input Sampling Rate
LRCLK/MCLK Ratio
AD0/CS/DIF1
SDIN1
SDIN2
SDIN3
DRIVER_A
VD
GND
MAY
‘
01
DS539PP1